There is a process called magnetic fluxing. This process relieves the stress level of the metal through magnetic bombardment and, as a
result, extends the useful life of the tool.

Lee goes on to write that "some cutting-tool users have long recommended magnetizing tools because it increases the modulus of elasticity of the tool,
extending its life."

I am not sure if the magnetic strip you use will sufficiently magnetize the tool to extend its life but you can keep an eye on how long they stay
sharp and make the judgement yourself! Now that is science.